<template>
  <div>
    <!--  面包屑-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
      <router-link to="/echarts1">
        <el-button size="mini" type="primary" style="margin-top: -12px">其他echarts</el-button>
      </router-link>

    </el-breadcrumb>
    <!--  视图区域-->
    <el-card>
      <!-- 2，为echarts准备一个高宽视图的div>-->
      <div id="main" style="width: 600px;height: 400px;"></div>

    </el-card>
  </div>
</template>

<script>
// 1,引入echarts
import * as echarts from 'echarts';
import _ from "lodash"

export default {
  data() {
    return {
      // 后台的option为了合并引入data
      // 需要合并的对象数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }

  },
  created() {
  },
  // 此时页面上的元素已经渲染完毕
  async mounted() {
    // 3,基于准备好的div，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));


    const {data: res} = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) {
      return this.$message.error('获取数据失败！')
    }
    this.$message.success('获取数据成功！')
    // 4，准备数据和配置项
    const result = _.merge(res.data, this.options)

// 5,展示数据
    myChart.setOption(result);
  },
  methods: {}
}
</script>

<style scoped lang="less">

</style>
